P0523 OBD Code Definition:
P0523 Engine Oil Pressure Sensor/Switch Circuit High Voltage
P0523 OBD Code Description:

OBD Code P0523

Engine Oil Pressure Sensor/Switch High Voltage

What’s mean?

OBD2 Code P0523 Definition:
The PCM continuously monitors the engine oil pressure. The Oil Pressure Sensor/Switch sends a signal to the PCM when the engine is running.


Possible sumptoms of P0523
– Engine Light ON (or Service Engine Soon Warning Light) – Oil pressure warning light ON.

Possible Causes

Possible causes of P0523
– Low oil level or motor mechanical fault – Open or short oil level sensor circuit condition – Poor oil level sensor electrical connection – Faulty oil pressure sensor The Error code is generally activated on detection of the following conditions: The P0523 is detected when the signal sent from oil pressure sensor to PCM goes above specifications.

Possible Solutions

The most likely cause is a faulty oil pressure sensor/switch

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